Heater attachment for grates and stoves



C. W-ESTERLUND.

. HEATER ATTACHMENT FOR GRATES AND STOVES.

APPLICATION FILED IuNIz 10, 1919.

1,383,506. Patented July 5, 1921.

me/nim ttow u,

y UNITED STATES PATENT OFFICE.

CHARLIE WESTERLUND, OF BIRMINGHAM, ALABAMA, ASSIGNOR OF ONE-THIRD T0 Y' F. IV. BOSTROT/I, OF CHICAGO, ILLINOIS,

HEATER ATTACHMENT FOR GRATES AND STOVEVS.

To all whom t may concern Be it known that I, CHARLIE WESTERLUND, Y

a citizen of theUnited. `States of America, residing at Birmingham, in the county of Jefferson and State'of Alabama, have invented certain new and useful Im rovements in Heater Attachments for rates and Stoves, of which the following is a specification.

My invention relates to a hot air heating attachment for grates, stoves and furnaces and has for its object to take advantage of the waste heat, that is now lostwith the escaping products of combustion, to produce a volume of hot lair which will assist materially Vin heating the room in which the grate' or stove isv placed or which rcan be adapted to heat otherA rooms or compart ments. Y

My invention contemplates the provision of an air heater disposed above the fire and arranged in conjunction with baiiles so as to cause the products of combustion to have a long and circuitous course in close contact with the walls of the air heating chambers, and my invention furthercontemplates the arrangement of such chambers soV as to form shallow baflles provided with partitions which direct the air in a circuitous course therethrough.

Vair heating chambers which inA turn deliver the heated air to an overhead hot air radiator, designed so as to produce a pleasing and ornamental appearance to the fire place and to have the least possible interference with the normal operation or appearance of the re place.

My invention is more particularly adapted for use in fire places and has been illustrated in this embodiment in the accompanying drawing, in which Y Figure 1 is a front view of there place equipped with my improved air heating attachment with the folding blower in operating position.v 1

Fi 2 is avertical sectional View taken on the linev 2 2 of Fig. 1.

Fig. 3 is a top plan view of the apparatus.

Fig. 4c is a sectional view taken on the line 4.-4 of Fig. 2.

Similar reference numerals refer to simi- 'lar parts throughout the drawings.

i Specioaton of Letters'Patent. i

Patented July 5, 1921.

Application filed .miie io, isis. serial No. 303,230.

As illustrated, a lire place or grate opening 1 has a. grate 2 of any ordinary construction suitably mounted therein.

straight so as to provide as much space as possiblefor the air heating attachments so thatv they can be set into'the wall in such manner that they will project but little into the room. In the upper .part of the fire place I Vmount a hot air heater comprising a lower horizontal heating chamber 4, a verber with a similar horizontal upper heating chamber 6. This connecting portion 5 is disposed against the backwall 3 ofthe fire Preferably the back wall of the fire place is leftV Vtical section 5 connecting thek lower cham- Y placeopening and is tied thereiiito byV re- 1 taining lugs or lips 7 or in any other suit* able manner. The heating chambers 4;' and 6 of the heater are spaced apart and they exi tend from side to side of the lire place opening, thus forming a pair of spaced baiiies connected only .at the rear by the section 5 and having their adjacent spaced walls disposed in parallelism. Each upper and lower Vchamber of the hot air heater is divided along itscenter from front to rear by a solid vertical partition wall 8V and each subdivided chamber thus produced is provided with transverse staggered baffles 9 so arranged as to produce a circuitous course for the air traversing the chamber from frontV to rear or vice versa. Y

On veach side of the fire place I provide a i cold air pipe 10 which is shown circular and provided with air inletY slots 11 in its base which rests on the floor. These pipes extend above the top of the air heater and there sup- If desired, it may be deverse partition 14 just above-the level of the lower chamber 4 of the air heater and each pipe, below this partition, is provided with i a lateral outlet pipe 15 which connects with the inlet port 16 at the front side edges of thel heater chamber 4. The cold air thus enters this lower heater chamber in opposite directions from each front corner and flows Vinwardly toward the division wall 8.

` rearwardly as indicated`V by the arrows in Fig. 3, until it enters the rear section 5 near its center and is there deflected by a horizontal partition 5a which stops'short of the sides of the sectionso as to provide ports 17 through which the partially heated air passes upwardlythrough the section 5 1 into the rear corners of the upper heater chamber 6,.thro ugh which it Hows in a circuitous course forwardly, controlled by the particorners of thisupper heater chamberwhich are providedgwith side ports 18 through which the hot Vair passes tov short-.pipe coni nections 19 and Hows therethrough back into i connected alongits bottom'edge to a bottom horizontalwall 21 which projects inwardly to a4 point above the outeredge of the gratev 2. Along lits upper vedge the front 2O is connected to a top horizontal wall `22 which passes underthe bottom edge ofthe radiator 12 andv underjthe top edge of the llire place opening back to the chimney Hue 23. The front 20V is spaced substantially from the forward edges of the heater and it-is provided with a middle baflie horizontal plate 24 whichextends midway between the heater chambers 4 and 6 and parallel therewithV to an pointnear the heater section 5. This partition extends from side to side of the fire place. Preferably the front sections 20, 21, 22 and 24 are so designed as to form with-the air heating chambers a circuitous passage of substantially uniform cross sectional area for the vproductsl of combustion, this passage opening below the heater near the' front of the fire place and opening above the heater near the rear of the fire place into the chimney Hue.`V Thebottom edge of thev front section 21 is down turned at 25 and is connected by hinges 26 to a folding blowerv plate comprising the hinged sections 27 and 28, the latter of which is provided with a handle 29 and adapted to hang below the topv of the grate. Vhe'n the sections of the blower are folded up one on the other and swung upwardly and outwardly theyV` are adapted to be caught and held by a spring catch 30 attached to the center of the front,

which thus serves to hold the blower when folded so -that it will be hardly noticeablef appearance surroundin form to the horizontal cross section of the may be adjusted to the desired position to control the draft.'

In operation, the fire is started in the grate in the customary manner after which the blower is dropped tooperating position shown in Figs. 1 and 2. This causes a quick starting of the Hre and brings the heating apparatus rapidly to heated condition. The products of combustion How through the circuitous passage provided therefor, Hrst passtion 8 and baffles 9 until it reaches the front ing under and then over the heater chamber 6, and then to the Hue. The cold air is drawn in from near the Hoorthrough the ports 11 in the pipes 10 and delivered into the heater v and in making its long passage therethrough .4, then under and over the heater chamber the air becomes highly heated and is finally'.

discharged into tl'ie'room through the, regis-V ter 12. The hot air will pass through the heater in 4a `volume proportionate to the' heat to which the air heater is exposed, asthe hot air therein will tendeto rise and'pass` into the register andthe rapidity of its How f .will be proportionate to the heatY radiated roducts of combustion and the heaterV itself is designed to give a maximum length i of, travel of. the hot air in its How therethrough.

The blower is folded up to dot-ted position,

Fig. 2, after they fire is well started,zwhere upon the Hrey in the grate willigive out itsV able effect tothe occupantsv ofthe `room.v

The consumptionof the fuelrcan be con-jy trolled by the regulation of the A.dainpere31.'

so as to obtain the maximum ciency therefrom.. A

The Vcold air pipes and the air register torheating efh-V f getherwillV form alpleasant .and ornamental Y 0f the'fire place. TheY air heater is especially designed so that it can Y be easily inaiiufacturedand installedand the metal.

This invention is not intended :to bere-.-

stricted in scope to the specific embodiments Y shown, but contemplates such modifications J as come withinthe spiritk and scope of the.;V

claims. i.

Having thus described my invention, what I claim as new and desire tovsecure byv Letl ters Patent, is

1. An air heating* grate attachment ,forl

fireplace opening comprisingya relatively, thin air conducting casing adapted-to con-.

fire pla-ce opening and to-bemounted as a baffle in the top` portion of "the fire placef across and in front of the .top ofthe lire opening only, afront member disposed Y 13.0%

100. radiation heat with a pleasant and lcomfortT .v

yso

place openingand. adapted to direct the products of combustionabout the outer edge of the heater casing, air conduits connected to the rheater casing at its front corners and disposed toset in front ofthe chimney, and a top radiator disposed above and in front of the chimney and having communication with said casing, substantially as described.

2. The combination with a fire place, a grate and a iue for the products of combustion, of an air heater mounted in the top only of the fireplace and disposed in the path of the products of combustion, said heater comprising spaced air heating chambers forming baflles, bafle'means to direct the products of combustion in a circuitous course under and over the spaced air heating chambers, and baflie means to cause the air to flow circuitously through said chamers.

3. The combination with a fire place, a grate and a flue for the products of combustion, of an air heater mounted in the top only of the fire place and disposed in the path of the products of combustion, said heater comprising communicating spaced air heating chambers forming baiiles, baffle means to direct the products of combustion in a circuitous course under, between and over the spaced air heating chambers, and baffle means to cause the air to flow circuitously through said chambers.

4. An air heating attachment for lire places comprising an air heater composed of upper and lower horizontal transverse hollow chambers connected at the rear only and disconnected at the front, and a front spaced from the said chambers and having connected thereto a horizontal bale disposed substantially midway between the upper and lower air chambers and forming therewith a circuitous passage adapted below to receive the products of combustion from the fire place and above to discharge them into the chimney flue.

5. An air heating attachment for re places comprising an air heater forming a baffle across the top of the fire place and composed of upper and lower horizontal transverse chambers communicating at the rear only and there arranged to engage the rear ire place wall, and a front wall depending in front of said chambers and having connected thereto a horizontal battle disposed substantially midway between said chambers to form a circuitous passage adapted below to receive the products of combustion and above to discharge them into the chimney flue, in combination with a draft regulating damper interposed in said passage for the products of combustion.

6. An air heating attachment for fire places comprising vertical air ducts adapted to rest on the floor and having cold air inlets at their bottom, a baiiied air heating casing substantially'horizontally disposed and havlire place opening, said casing having walls forming a circuitous passage for the prod- Y ucts of combustion through said casing, and an air register above said casing and having communication therewith to receive heated air therefrom.

7. An air heating attachment for fire places comprising vertical air ducts adapted to rest on the floor and having cold air inlets at their bottom, a baliied air heating casing substantially horizontally disposed and having its front portion mounted on and communicating with said air ducts, the main body portion of said air heating casing being adapted to project into and to itself form a baile across the upper portion of a fire place opening, said casing having walls forming a circuitous passage for the products of combustion through said casing, and an air register mounted on the upper ends of said air pipes above said casing and having communication therewith to receive heated air therefrom.

8. The combination with a fire place, a grate and its chimney, of double baiile air heating chambers disposed in the path of the products of combustion in their passage to the flue and having its front portion projecting to the front beyond the fire place, an overhead register mounted on the overhung front portion of and having connection with the hot air heating baffle and side air supply pipes which support said overhung front end of the air heating baffle chambers, and communicating therewith, substantially as described.

9. An air heating attachment for lire places comprising a pair of upright air pipes having air inlets at their bottom ends and which are adapted to stand in front of and to each side of the fire place opening, a baliled air heating chamber having its front end communicating with and supported by said pipes, said casing being adapted to form a horizontal baille across the upper portion of a fire place opening with a circuitous passage therethrough for the products of combustion, an air register mounted on and communicating with the upper ends of said pipes, connections from the air heater to the upper ends of said pipes, and a partition in the pipes between the upper and lower connections therefrom to the air heating casing.

1.0. In combination, a hot air heater comprising transverse parallel shallow body portions having hot air chambers therein which communicate at the rear; and a heater front spaced from the forward endsof said air heater sections and comprising a bottom extension, Which projects partly underand is spaced from the under portion of the heater, Y 5 and an intermediate baie plate Whiohis portions, and means vto mount saidheater in the upper part of an ordinary fire' place,

substantially.asdescrihedL In testimon Vwhereof I aX'my signature. A

f f C ARLIE- WESTERLUNDQ Witness: I Y 'Y NoMIE WELSH. 1f v 

